SawTroll
Information Collector
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I'd put my money on a K095 small mount for the 555.......
So do I, and there are indications that the 555 (odd model number) will not have the revboost feature - time will tell....:msp_smile:
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I'd put my money on a K095 small mount for the 555.......
All things being equal, sometimes awesome is more awesome than awesome;
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So do I, and there are indicatios that the 555 (odd model number) will not have the revboost feature - time will tell....:msp_smile:
So do I, and there are indications that the 555 (odd model number will not have the revboost feature - time will tell....:msp_smile:
I'm sure you anticipated a reply like this, but...................
I agree that the 555 won't have the rev boost coil. Which is of course the case with EVERY other saw that any of us own. Revboost is a cool feature, but it's not as if any of us will be running our other saws and thinking, "Gee, I wish this thing had revboost."
The point I'm trying to make is this: Lack of revboost should not be considered much of a negative against the 555, or any saw for that matter. I've run it, and while you do notice it and it's nice, it's not "OH WOW!" nice.
Also, the way I understand it, Revboost doesn't make the saw spool up any faster. It just alllows you a short burst of extra RPM's at the top end for limbing. So, acceleration as we know it will not be all that different with or without the revboost. It's the lower weight of the rotating mass that should make for excellent acceleration in any of the saws in this family.
What exactly does a "revboost" coil do? I mean in real terms. Alter the timing? Is so, in what way?
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The revboost sounds like another sells gimick - just like the 'air injection' (I've blocked mine off to provide more cooling air to the cylinder and to keep the fine dust out of the air box).
ST, I have two holes I drilled in the back of the air box lid just above the handle.
Timberwolf did some research on the heating of the air by the compression of the flywheel and found that there could be up to 10F increase in the air temperature coming off the air injection system. That is a slight drop in air density that I don't have to worry about now.
The air injection system works well for keeping the big chunks out of the airbox, but it is the 'fines' that get sucked into the filter system. I got a graphic demonstration of how the air injection system actually increases the fines to the air box.
I was cutting up a burnt stump that had a fair bit of charcoal on it. The front of the saw was black with the dust from the charcoal - HOWEVER, it was the black coating down the left side and into the front of the flywheel cover that showed the flow of the charcoal dust into the air injection system.
If someone was cutting green wood it wouldn't be a problem, but over here in Oz the dry hardwood (and termite litter) creates a lot of fine dust - dust which would get sucked into the front of the flywheel cover.
My running temps also dropped quite significantly after blocking of the air injection. The more I modded the engine to increase the flow, the more air I was removing from the cylinder fins. In other words, I was making the engine produce more power (and heat) at the same time I was removing cooling air.
ST, I have two holes I drilled in the back of the air box lid just above the handle.
Timberwolf did some research on the heating of the air by the compression of the flywheel and found that there could be up to 10F increase in the air temperature coming off the air injection system. That is a slight drop in air density that I don't have to worry about now.
The air injection system works well for keeping the big chunks out of the airbox, but it is the 'fines' that get sucked into the filter system. I got a graphic demonstration of how the air injection system actually increases the fines to the air box.
I was cutting up a burnt stump that had a fair bit of charcoal on it. The front of the saw was black with the dust from the charcoal - HOWEVER, it was the black coating down the left side and into the front of the flywheel cover that showed the flow of the charcoal dust into the air injection system.
If someone was cutting green wood it wouldn't be a problem, but over here in Oz the dry hardwood (and termite litter) creates a lot of fine dust - dust which would get sucked into the front of the flywheel cover.
My running temps also dropped quite significantly after blocking of the air injection. The more I modded the engine to increase the flow, the more air I was removing from the cylinder fins. In other words, I was making the engine produce more power (and heat) at the same time I was removing cooling air.
Revboost is controlled by the ignition and enables users to increase to maximum rpm for about two seconds. It is designed to provide an optimum ratio of power to rpm without having the engine run wide open for extended periods of time.
Spike, that is how I understand it as well, but it doesn't change my attitude!
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